PT700 21398twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明疋有關於一種投影裝置（projection apparatus)，且特別是有關於一種具有多個燈源（iight source)的投影裝置。 【先前技術】 隨著科技的發展，投影裝置對亮度的需求日益增加， 使单燈源的投影農置已無法滿足而亮度的需求，因此， 配置多個燈源的投影裝置便應運而生。 由於採用多個燈源之高亮度投影裝置會消耗較多的電 能，進而產生較多的廢熱，因此’其主要的技術瓶頸之一 即為散熱系統的設計’尤其是針對燈源之散熱系統的設 計。由於燈源會產生大量的廢熱，但為了將其溫度控制在 廢商所限定的範圍之内，以維持其性能與使用壽命，因此， 燈源的散熱系統極為重要。 在習知採用多個燈源的投影裝置中，多個燈源的散熱 系統是延用單一燈源的投影裝置的散熱系統。在單—燈源 的投影裝置中’投影裝置會在鄰近於燈源處配置一鼓風扇 (blower)、一導風管（duct)及一軸流風扇（axialfan)。 妓風扇會產生一冷卻氣流，而導風管會導引冷卻氣流至燈 源的燈芯（burner)上，以冷卻燈芯的溫度。而軸流風扇 會產生另一冷卻氣流，以冷卻燈源的反射罩。然而，當上 述之散熱系統應用於多個燈源的投影裝置中時，所需使用 的鼓風扇、導風管及軸流風扇的數量將倍數増加，使成本 PT700 21398twf.doc/n =及整舰積變大。而增加鼓風扇不僅會增加電能的消 ^置’也會增加系統電路的複雜性。此外，鼓風扇使用數 二的增加會使投影裝置的尺寸紐有效地縮減。 【發明内容】 本發明之一目的是提供一種投影裝置，以達到減少風 扇之使用數量。 本發明之另一目的是提供—種燈源模組（lamp module)，以達到減少風扇之使用數量。 本發明的其他目的和優點可以從本發明所揭露的技術 特徵中得到進一步的了解。 曰為達上述之一或部份或全部目的或是其他目的，本發 『提出一種投影裝置，包括一殼體（casing)、一燈源模 、、且、—成像系統（imaging system )以及一光學引擎（optical engine)。殼體具有一出風口以及一入風口。燈源模組配 置於喊體内，並包括一框架（frame)、一第一風扇、多個 ，源以及一導風裝置（wind guiding)。第一風扇配置於框 y、上並適於長:供一冷卻氣流（cooling airflow )。這些燈 源適於提供一照明光束（illumination light beam)。導風 ，置配置於第一風扇與框架之間，並具有一設於冷卻氣流 流動路徑上之導風板（baffle)，以將冷卻氣流分為多個子 冷卻氣流’並使這些子冷卻氣流分別冷卻這些燈源。成像 ，統與光學引擎配置於殼體内，且位於照明光束的傳遞路 役上。而且，光學引擎位於燈源模組與成像系統之間。 在本發明之一實施例中，上述之殼體具有一出風口， PT700 21398twf.doc/n 在本發明之一實施例中’上述之各第一容納空間具有 二個第二開口，且這些第二開口分別位於燈源之相對兩 側。投影裝置更包括至少一第二風扇。第二風扇鄰近於其 中一第二開口，並位於出風口與入風口之間。第二風扇提 供之一冷卻氣流由入風口進入殼體並通過燈源後，由出風 口排出殼體外。 在本發明之一實施例中，上述之各燈源包括一燈罩 (lamp reflector)以及一燈芯。燈罩配置於第一容納空間 中，且第二風扇之冷卻氣流流經燈罩之外表面，而燈芯仅 於燈罩内，且子冷卻氣流流向燈芯。 在本發明之一實施例中’上述之投影裝置更包括一電 源供應器，係配置於第二風扇與入風口之間。 在本發明之一實施例中，上述之燈源的數量為兩個， 而這些燈源分別位於框架的相對兩側部。各燈源適於提供 一照明子光束’且這些照明子光束彼此平行。 在本發明之一實施例中，上述之燈源的數量為兩個， 而這些燈源分別位於框架的相對兩側部。各燈源適於提供 一照明子光束，且這些照明子光束彼此垂直。 " 在本發明之一實施例中，上述之燈源的數量為三個， 而這些燈源分靠於框㈣補三側部。各燈源適於提供 一照明子光束，且這些燈源之其一所提供之照明子光: 與其他燈源所提供之這些照明子光束垂直。 曰 在本發明之一實施例令，上述之導風裝置連接於第〜 風扇之-端為—承載面’而連接於框架之另—端為—連隹 PT700 21398twf.doc/n 面。承載面不平行於連接面，且第一風扇之軸心與這些燈 源之光轴至少其中之一有一失角。 在本發明之一實施例中，上述之各燈源包括一燈罩以 及一燈芯，其中燈罩配置於框架中，而燈芯位於燈罩内， 且子冷卻氣流分別流向燈源之燈芯。 在本發明之一實施例中，上述之投影裝置更包括一位 於燈源模組與殼體之出風口之間之遮光板。 在本發明之一實施例中，上述之投影裝置更包括一位 於燈源模組與殼體之出風口之間之擋板，以引導這些子冷 卻氣流由擋板之相對兩側流動至出風口 α 一 7 由於本發明疋將多個燈源排列於第一風扇的周圍，以 使這二燈源可共用第一風扇所提供的冷卻氣流以進行散 熱。因此，本發明可以有效地減少投影裝置中風扇的使用 數量。 為讓本發明之上述和其他目的、特徵和優點能更明顯 ，下文特舉較佳實施例，並配合所附圖式， 說 明如下。 、 【實施方式】 下列各實施例的說明是參考附加的圖式，用以例示本PT700 21398twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a projection apparatus, and more particularly to a projection apparatus having a plurality of iight sources. [Prior Art] With the development of technology, the demand for brightness of projection devices is increasing, so that the projection of single-source sources cannot meet the demand for brightness. Therefore, projection devices equipped with multiple light sources have emerged. Since a high-brightness projection device using multiple light sources consumes more power and generates more waste heat, one of the main technical bottlenecks is the design of the heat dissipation system, especially for the heat dissipation system of the light source. design. Since the light source generates a large amount of waste heat, in order to maintain its temperature within the limits defined by the waste to maintain its performance and service life, the heat dissipation system of the light source is extremely important. In conventional projection devices employing multiple light sources, the heat dissipation system of the plurality of light sources is a heat dissipation system of a projection device that extends from a single light source. In a single-light source projection device, the projection device is configured with a blower, a duct, and an axial fan adjacent to the light source. The fan will generate a cooling airflow, and the air duct will direct the cooling airflow to the burner of the light source to cool the temperature of the wick. The axial fan produces another cooling airflow to cool the reflector of the light source. However, when the above-described heat dissipation system is applied to a projection device of a plurality of light sources, the number of blowers, air ducts, and axial fans required to be used is multiplied, so that the cost is PT700 21398 twf.doc/n = and The ship's product has become bigger. Increasing the fan fan not only increases the power consumption, but also increases the complexity of the system circuitry. In addition, the increase in the number of blower fans used can effectively reduce the size of the projection device. SUMMARY OF THE INVENTION One object of the present invention is to provide a projection apparatus to reduce the number of fans used. Another object of the present invention is to provide a lamp module to reduce the number of fans used. Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. The present invention provides a projection apparatus including a casing, a light source module, and an imaging system, and a Optical engine. The housing has an air outlet and an air inlet. The light source module is disposed in the body of the shout and includes a frame, a first fan, a plurality of sources, and a wind guiding device. The first fan is disposed on the frame y, and is adapted to be long: for a cooling airflow. These sources are adapted to provide an illumination light beam. The air guide is disposed between the first fan and the frame, and has a baffle disposed on the flow path of the cooling airflow to divide the cooling airflow into a plurality of sub-cooling airflows and respectively Cool these lights. The imaging, optical and optical engines are disposed within the housing and are located on the transmission path of the illumination beam. Moreover, the optical engine is located between the light source module and the imaging system. In an embodiment of the invention, the housing has an air outlet, PT700 21398twf.doc/n. In an embodiment of the invention, each of the first receiving spaces has two second openings, and the first The two openings are respectively located on opposite sides of the light source. The projection device further includes at least one second fan. The second fan is adjacent to a second opening thereof and is located between the air outlet and the air inlet. The second fan provides a cooling airflow that enters the housing through the air inlet and passes through the light source, and is discharged from the air outlet to the outside of the housing. In one embodiment of the invention, each of the light sources includes a lamp reflector and a wick. The lampshade is disposed in the first accommodating space, and the cooling airflow of the second fan flows through the outer surface of the lampshade, and the wick is only in the lampshade, and the sub-cooling airflow flows to the wick. In an embodiment of the invention, the projection device further includes a power supply disposed between the second fan and the air inlet. In an embodiment of the invention, the number of the light sources is two, and the light sources are respectively located at opposite sides of the frame. Each light source is adapted to provide an illumination sub-beam 'and these illumination sub-beams are parallel to each other. In an embodiment of the invention, the number of the light sources is two, and the light sources are respectively located at opposite sides of the frame. Each of the light sources is adapted to provide an illumination sub-beam and the illumination sub-beams are perpendicular to each other. " In an embodiment of the present invention, the number of the above-mentioned light sources is three, and the light sources are divided into three sides of the frame (four). Each of the light sources is adapted to provide an illumination sub-beam, and one of the illumination sources provides illumination sub-lights that are perpendicular to the illumination sub-beams provided by other sources. In one embodiment of the present invention, the air guiding device is connected to the end of the first fan to be the carrying surface and the other end of the frame is connected to the PT700 21398twf.doc/n surface. The bearing surface is not parallel to the connecting surface, and the axis of the first fan has a lost angle with at least one of the optical axes of the light sources. In an embodiment of the invention, each of the light sources includes a lamp cover and a wick, wherein the lamp cover is disposed in the frame, and the wick is located in the lamp cover, and the sub-cooling airflow flows to the wick of the lamp source, respectively. In an embodiment of the invention, the projection device further includes a light shielding plate between the light source module and the air outlet of the housing. In an embodiment of the invention, the projection device further includes a baffle between the light source module and the air outlet of the housing to guide the sub-cooling airflow from the opposite sides of the baffle to the air outlet. Since the present invention, a plurality of light sources are arranged around the first fan so that the two light sources can share the cooling airflow provided by the first fan for heat dissipation. Therefore, the present invention can effectively reduce the number of fans used in the projection apparatus. The above and other objects, features and advantages of the present invention will become more apparent from [Embodiment] The following description of each embodiment refers to an additional drawing for illustrating the present invention.
僅疋參考附加圖式的方向。因此， 用來說明’而非用來限制本發明。 °本發明所提到的方向用 、「後」、「左」、「右」 因此，使用的方向用語是 PT700 21398twf.doc/n 第一實施例 請參考圖1至圖4A，本發明第—實施例之投影裂置 10包括-燈賴I且l〇〇a、一光學引擎2〇〇、一成像系統3〇〇 以及一殼體400。燈源模組1〇〇a、光學引擎2〇〇與成像系 統300配置於殼體400内。其中，燈源模組1〇〇a適於提供 一照明光束142 (繪示於圖4A)，而光學引擎2〇〇與成像 系統300配置於照明光束142的傳遞路徑上，且光學引擎 200位於燈源模組100a與成像系統3〇〇之間。在第一實施 例中，殼體400例如是具有一位於殼體4〇〇角落之出風口 410 ’而燈游模組100a例如是鄰近於出風口 配置，以 提高散熱效率。 更詳細而言，燈源模組l〇0a包括一框架11〇、二個燈 源140a、140b、一合光元件15〇 (繪示於圖3)、一第一 風扇130以及一導風裝置120。其中，框架11〇具有二個 第一容納空間112a、112b、一第二容納空間114以及一第 一開口 116 (繪示於圖3 )。第二容納空間114具有一頂部 1141 (繪示於圖5)、一相對於頂部1141之底部1142 (繪 示於圖5)，以及複數個連接於頂部1141與底部1142之 間的側部1143 (繪示於圖5)。第一容納空間U2a、112b 位於第二谷納空間114之兩側部1143 ’本實施例中，係位 於相鄰兩側部1143。第一開口 116位於第二容納空間114 之底部1丨42。 而燈源模組l〇〇a之燈源140a、140b適於提供照明光 束142，燈源140a、140b分別位於對應之第一容納空間 1325089 PT700 21398twf.doc/n 112a、112b中，且燈源140a、140b之出光面141朝向第 二容納空間114配置。燈源140a、140b適於分別提供照明 子光束142a、142b (繪示於圖4A)，燈源140a、140b分 別包括一燈罩144以及一燈芯146，其中燈罩144分別位 於框架110之第一容納空間112a、112b中，而燈芯146 則分別位於對應之燈罩144内。 而合光元件150配置於框架11〇之第二容納空間114 中，且位於照明子光束142a、142b之傳遞路徑上。而且， 照明子光束142a、142b彼此垂直，且合光元件150適於將 照明子光束142a、142b轉換為照明光束142，並使照明光 束142傳遞至如圖1所示之光學引擎200。更詳細而言， 在弟一實施例中，合光元件150例如是由一分光鏡 (spectroscope) 152 與一反射鏡（reflector) 154 所組成。 當照明子光束142a、142b投射至分光鏡152時，照明子光 束142a之一部分會被分光鏡152反射，以投射至光學引擎 200’而另一部分會通過分光鏡152,並被反射鏡154反射， 以投射至分光鏡152上。同時，照明子光束142b之一部分 會通過分光鏡152,以投射至光學引擎200,而另一部分會 被分光鏡152反射，並被反射鏡154反射，以投射至分光 鏡152上。此外，被反射鏡154所反射的照明子光束142a、 142b之一部分會通過分光鏡152，以投射至燈源140a，而 另一部分會被分光鏡152反射，以投射至燈源140b。因此， 照明子光束142a、142b可透過合光元件150轉換為照明光 束142 ’並傳遞至光學引擎200。然而，上述實施例並非用 12 1325089 PT700 21398twf.doc/n 以限定本發明。照明子光束142a' 142b透過合光元件150 轉換為照明光束142，並傳遞至光學引擎200的其他方式 請參照中華民國公告第00580545號專利所述’於此不作贅 述。 而第一風扇130配置於框架11〇上，並位於第二容納 空間114頂部1141且適於提供一冷卻氣流132(繪示於圖 1)，第一風扇130例如是軸流風扇。然而，本發明之第一 風扇130並不僅限於軸流風扇，還可以是鼓風扇。 而導風裝置120配置於框架11〇上且適於將冷卻氣流 132導向燈源140a、140b以及合光元件150 ’以使燈源 140a、140b與合光元件150可藉由共用冷卻氣流Π2以進 行散熱。詳細地說，導風裝置120配置於框架11〇之第二 容納空間114頂部1141上，且位於框架11〇與第一風扇 130之間。導風裝置120連接於第一風扇130之一端為一 承載面122(繪示於圖3) ’而其連接於框架no之另一端 為一連接面124 (繪示於圖3 )。其中，承載面122不平行 於連接面124 ’以使第一風扇130藉由導風裝置12〇連接 至框架110時’其第一風扇130之軸心會與燈源MOa、140b 之光軸至少其中之一有一夾角（於圖2中所示為同時與燈 源140a、140b之光軸有一夹角）。而導風裝置12〇之外型 例如是矩形空心柱體。導風裝置120具有一位於冷卻氣流 132流動的路徑上之導風板126 (繚示於圖3)，以將冷卻 氣流132分為多個子冷卻氣流（例如：第一子冷卻氣流、 弟一子冷卻氣流及第三子冷卻氣流）’以使子冷卻氣流分 13 1325089 PT700 21398twf.doc/n 別冷卻燈源140a、140b與合光元件150。藉由導風板126 與承載面122不平行於連接面124之設計，以使子冷卻氣 流可流向燈源140a、140b之燈芯146。 當第一風扇130啟動時，其所提供之冷卻氣流132流 經導風板126後會將冷卻氣流分為第一子冷卻氣流、第二 子冷卻氣流及第三子冷卻氣流，並分別流向合光元件150 的相對兩侧與燈源140a、140b之燈芯146，然後再依序通 過第一開口 116與出風口 410而排出殼體400外。因此， 燈源140a、140b之燈芯146與合光元件150可藉由共用冷 卻氣流132以進行散熱。 除此之外，投影裝置10還可以包括二個第二風扇 500a、500b以及二個電源供應器600a、600b。再者，框架 U0位於第一容納空間112a處具有二個第二開口 U8a，且 其位於第一容納空間112b處亦具有二個第二開口 iigb， 而殼體400更具有二個入風口 420a、420b。第二開口 U8a 分別鄰近於燈源140a之相對兩側，且第二開口 iigb分別 鄰近於燈源140b之相對兩側，而入風口 420a、420b則分 別位於殼體400遠離出風口 410之其中一個角落，且燈源 模組100a遠離入風口 420a、420b配置。 再者，第二風扇500a與電源供應器600a對應於燈源 140a配置’且位於出風口 410與入風口 420a之間。其中， 第二風扇500a鄰近於第二開口 n8a且位於框架no與電 源供應器600a之間’電源供應器6〇〇a配置於第二風扇5〇〇a 與入風口 420a之間。再者，第二風扇5〇〇b與電源供應器 14 1325089 PT700 21398twf.doc/n 600b對應於燈源140b配置，且位於出風口 4i〇與入風口 420b之間。其中’第二風扇500b鄰近於第二開口 118b， 且位於框架110與電源供應器600b之間，電源供應器600b 配置於第二風扇500b與入風口 420b之間。 另外’投影裝置10更包括一檔板700以及一遮光板 800，擋板700以及遮光板800位於燈源模組l〇〇a與殼體 400之出風口 410之間，其中擋板700鄰近於框架u〇配 置’並位於燈源140a、140b與遮光板800之間，且鄰近於 第一容納空間112a、112b之另一第二開口 118a、118b之 間，以導引第二風扇500a、500b所分別提供之冷卻氣流 502a、502b由擋板700之相對兩側流動至出風口 410。而 遮光板800鄰近於出風口 410配置，且鄰近於第一容納空 間 112a、112b 之另一第二開口 118a、118b，以避免 140a、 140b所提供之光線由出風口 410漏出。 更詳細而言，當第二風扇500a啟動時，其所提供之冷 卻氣流502a會由入風口 420a進入殼體400，並依序通過 電源供應器600a、第二風扇500a與兩相對之第二開口 118a，並藉由擋板700之導引通過遮光板800之一側而由 出風口 410排出殼體400外。其中，由於冷卻氣流502a 通過框架110之第二開口 118a時會流經燈源140a之燈罩 144之外表面，因此，冷卻氣流502a可用以冷卻燈源140a 之燈罩144。另外，當第二風扇500b啟動時’其所提供之 冷卻氣流502b會由入風口 420b進入殼體400，並依序通 過電源供應器600b、第二風扇500b與兩相對之第二開口 15 PT700 21398twf.doc/n 118b，並藉由擋板700之阻隔通過遮光板80〇之另一側而 由出風口 410排出殼體400外。相同的，由於冷卻氣流5〇2b 通過框架110之第二開口 118b時會流經燈源14〇b之燈罩 144之外表面，因此’冷卻氣流5〇2b可用以冷卻燈源140b 之燈罩144。 吾人由上述實施例中可知，冷卻氣流502a、502b可分 別用以冷卻對應之電源供應器600a、600b與對應之燈源 140a、140b之燈罩144。其中，於第一實施例中之第二風 扇500a、500b例如是軸流風扇，但第二風扇500a、500b 退可以是鼓風扇。 另外’投影裝置10更可以包括一第三風扇900，鄰近 於光學引擎200配置，以使其所提供之冷卻氣流902可用 以冷卻位於光學引擎200内部的光學元件，例如：色輪 (color wheel)、光積分柱（light integration rod)、透鏡、 内部全反射稜鏡（total internal reflection prism，TIR prism ) 與數位微鏡裝置（digital micro-mirror device, DMD)。其 中，於第一實施例中之第三風扇900例如是鼓風扇，但第 二風扇900還可以是轴流風扇。當第三風扇900啟動時’ 其入風口會抽吸由入風口 420b進入殼體400之氣流，之後 由其出風口排出至光學引擎200内冷卻其内部的光學元 件，最後由出風口 410排出殼體400外。 值得注意的是，由於第一風扇130之功率會大於第二 風扇500a、500b與第三風扇900之功率，因此，其所提供 之冷卻氣流132會帶動第二風扇500a、500b與第三風扇 1325089 PT700 21398twf.doc/n 900所提供之冷卻氣流5〇2a、502b、902通過出風口 410 排出殼體400外。也因此，冷卻氣流132、502a、502b、 902不會滯留於殼體400内，以避免殼體400内部的溫度 持續升高。 第二實施例 請參考圖4B，此燈源模組l〇〇b之結構大致上是與圖 4A中所示之燈源模組100a相同，而二者不同之處在於： 第二實施例中之第一容納空間112a、112b位於第二容納空 間114之相對兩側部U43，而燈源140a、140b分別位於 對應之第一容納空間112a、112b中，且燈源140a、140b 之出光面141朝向第二容納空間114配置，且燈源14〇a、 HOb所提供之照明子光束142a、142b彼此平行。相同的， 照明子光束142a、142b透過合光元件150轉換為照明光束 142,並傳遞至光學引擎2〇〇的其他方式請參照中華民國公 告第00580545號專利所述，於此不作贅述。 第三實施例 請參考圖4C，此燈源模組i〇〇c之結構大致上是與圖 4A中所示之燈源模組i〇〇a相同，而二者不同之處在於： 差^實施例中之框架110具有三個第一容納空間U2a、 112b、112c，且燈源模组i〇OC具有三個燈源14〇a、M〇b、 140c，而合光元件150僅包括分光鏡152。第一容納空間 112a、112b、112c分別位於第二容納空間U4之相鄰三側 17 1325089 PT700 21398twf.doc/n 部1143，而燈源140a、l4〇b、l4〇c分別位於對應之第一 容納空間 112a、112b、112c 中，且燈源 140a、140b、140c 之出光面141朝向第二容納空間114配置。其中，燈源 140a、140c所提供之照明子光束142a、142c彼此平行， 而燈源140b所提供之照明子光束142b會與燈源140a、Only refer to the direction of the attached drawing. Therefore, it is intended to be illustrative, and not to limit the invention. ° Directions referred to in the present invention, "back", "left", "right" Therefore, the direction of use is PT700 21398twf.doc/n. First embodiment, please refer to FIG. 1 to FIG. 4A, the present invention - The projection split 10 of the embodiment includes a lamp I and a lens, an optical engine 2, an imaging system 3A, and a housing 400. The light source module 1A, the optical engine 2A, and the imaging system 300 are disposed in the casing 400. The light source module 1A is adapted to provide an illumination beam 142 (shown in FIG. 4A), and the optical engine 2 and the imaging system 300 are disposed on the transmission path of the illumination beam 142, and the optical engine 200 is located Between the light source module 100a and the imaging system 3A. In the first embodiment, the housing 400 has, for example, an air outlet 410' located at a corner of the housing 4, and the light module 100a is disposed adjacent to the air outlet, for example, to improve heat dissipation efficiency. In more detail, the light source module 10a includes a frame 11A, two light sources 140a, 140b, a light combining component 15A (shown in FIG. 3), a first fan 130, and an air guiding device. 120. The frame 11 has two first receiving spaces 112a, 112b, a second receiving space 114, and a first opening 116 (shown in Figure 3). The second receiving space 114 has a top portion 1141 (shown in FIG. 5), a bottom portion 1142 (shown in FIG. 5) relative to the top portion 1141, and a plurality of sides 1143 (between the top portion 1141 and the bottom portion 1142). Shown in Figure 5). The first accommodating spaces U2a, 112b are located on both side portions 1143' of the second glutinous space 114 in the present embodiment, and are located on the adjacent side portions 1143. The first opening 116 is located at the bottom 1丨42 of the second accommodation space 114. The light source 140a, 140b of the light source module 10a is adapted to provide an illumination beam 142, and the light sources 140a, 140b are respectively located in the corresponding first receiving spaces 1325089 PT700 21398twf.doc/n 112a, 112b, and the light source The light-emitting surface 141 of the 140a, 140b is disposed toward the second accommodation space 114. The light sources 140a, 140b are adapted to provide illumination sub-beams 142a, 142b (shown in FIG. 4A), respectively. The light sources 140a, 140b respectively include a lamp cover 144 and a wick 146, wherein the lamp cover 144 is respectively located in the first receiving space of the frame 110. In the 112a, 112b, the wicks 146 are respectively located in the corresponding lampshades 144. The light combining element 150 is disposed in the second receiving space 114 of the frame 11 and is located on the transmission path of the illumination sub-beams 142a, 142b. Moreover, the illumination sub-beams 142a, 142b are perpendicular to each other, and the light combining element 150 is adapted to convert the illumination sub-beams 142a, 142b into an illumination beam 142 and to pass the illumination beam 142 to the optical engine 200 as shown in FIG. In more detail, in an embodiment, the light combining element 150 is composed of, for example, a spectroscope 152 and a reflector 154. When the illumination sub-beams 142a, 142b are projected to the beam splitter 152, one portion of the illumination sub-beam 142a is reflected by the beam splitter 152 for projection to the optical engine 200' and the other portion passes through the beam splitter 152 and is reflected by the mirror 154. It is projected onto the beam splitter 152. At the same time, one portion of the illumination sub-beam 142b passes through the beam splitter 152 for projection to the optical engine 200, and the other portion is reflected by the beam splitter 152 and is reflected by the mirror 154 for projection onto the beam splitter 152. In addition, a portion of the illumination sub-beams 142a, 142b reflected by the mirror 154 will pass through the beam splitter 152 for projection to the lamp source 140a, while another portion will be reflected by the beam splitter 152 for projection to the lamp source 140b. Therefore, the illumination sub-beams 142a, 142b can be converted into the illumination beam 142' through the light combining element 150 and transmitted to the optical engine 200. However, the above embodiment does not use 12 1325089 PT700 21398 twf.doc/n to define the present invention. Other ways in which illumination sub-beams 142a' 142b are converted to illumination beam 142 by illumination unit 150 and transmitted to optical engine 200 are described in the 'Republic's Publication No. 00580545', which is hereby incorporated by reference. The first fan 130 is disposed on the frame 11A and is located at the top portion 1141 of the second receiving space 114 and is adapted to provide a cooling airflow 132 (shown in FIG. 1). The first fan 130 is, for example, an axial fan. However, the first fan 130 of the present invention is not limited to the axial flow fan, but may be a blower fan. The air guiding device 120 is disposed on the frame 11A and is adapted to guide the cooling airflow 132 to the light sources 140a, 140b and the light combining component 150' so that the light sources 140a, 140b and the light combining component 150 can be shared by the cooling airflow Π2. Cool down. In detail, the air guiding device 120 is disposed on the top portion 1141 of the second accommodating space 114 of the frame 11 and is located between the frame 11 〇 and the first fan 130. The air guiding device 120 is connected to one end of the first fan 130 as a bearing surface 122 (shown in FIG. 3) and connected to the other end of the frame no as a connecting surface 124 (shown in FIG. 3). Wherein, the bearing surface 122 is not parallel to the connecting surface 124 ′ so that the first fan 130 is connected to the frame 110 by the air guiding device 12 ' “the axis of the first fan 130 and the optical axis of the light source MOa , 140 b are at least One of them has an included angle (shown in Fig. 2 as being at an angle to the optical axis of the light source 140a, 140b). The outer shape of the air guiding device 12 is, for example, a rectangular hollow cylinder. The air guiding device 120 has a wind deflecting plate 126 (shown in FIG. 3) on the path of the cooling airflow 132 to divide the cooling airflow 132 into a plurality of sub-cooling airflows (for example: the first sub-cooling airflow, the younger one) The cooling airflow and the third sub-cooling airflow are '' such that the sub-cooling airflow is divided into 13 1325089 PT700 21398 twf.doc/n to cool the light sources 140a, 140b and the light combining element 150. By the design of the deflector 126 and the bearing surface 122 not parallel to the connecting surface 124, the sub-cooling gas flow can flow to the wick 146 of the lamp source 140a, 140b. When the first fan 130 is activated, the cooling airflow 132 provided by the cooling fan is divided into the first sub-cooling airflow, the second sub-cooling airflow and the third sub-cooling airflow, and flows to the airflow. The opposite sides of the optical element 150 and the wick 146 of the light source 140a, 140b are then discharged out of the housing 400 through the first opening 116 and the air outlet 410. Therefore, the wick 146 of the light source 140a, 140b and the light combining element 150 can dissipate heat by sharing the cooling airflow 132. In addition, the projection device 10 may further include two second fans 500a, 500b and two power supplies 600a, 600b. Furthermore, the frame U0 has two second openings U8a at the first receiving space 112a, and has two second openings iigb at the first receiving space 112b, and the housing 400 further has two air inlets 420a, 420b. The second openings U8a are respectively adjacent to opposite sides of the light source 140a, and the second openings iigb are respectively adjacent to opposite sides of the light source 140b, and the air inlets 420a, 420b are respectively located at one of the housings 400 away from the air outlet 410. Corners, and the light source module 100a is disposed away from the air inlets 420a, 420b. Furthermore, the second fan 500a and the power supply 600a correspond to the light source 140a arrangement' and are located between the air outlet 410 and the air inlet 420a. The second fan 500a is adjacent to the second opening n8a and located between the frame no and the power supply 600a. The power supply 6A is disposed between the second fan 5a and the air inlet 420a. Furthermore, the second fan 5〇〇b and the power supply 14 1325089 PT700 21398twf.doc/n 600b correspond to the light source 140b configuration and are located between the air outlet 4i and the air inlet 420b. Wherein the second fan 500b is adjacent to the second opening 118b and located between the frame 110 and the power supply 600b, and the power supply 600b is disposed between the second fan 500b and the air inlet 420b. In addition, the projection device 10 further includes a baffle 700 and a visor 800. The baffle 700 and the visor 800 are located between the light source module 10a and the air outlet 410 of the housing 400, wherein the baffle 700 is adjacent to the baffle 700. The frame u〇 configuration is located between the light sources 140a, 140b and the light shield 800 and adjacent between the other second openings 118a, 118b of the first accommodation spaces 112a, 112b to guide the second fans 500a, 500b The separately provided cooling airflows 502a, 502b flow from opposite sides of the baffle 700 to the air outlet 410. The visor 800 is disposed adjacent to the air outlet 410 and adjacent to the other second openings 118a, 118b of the first accommodating spaces 112a, 112b to prevent light provided by the 140a, 140b from leaking out of the air outlet 410. In more detail, when the second fan 500a is activated, the cooling airflow 502a provided by the second fan 500a enters the casing 400 through the air inlet 420a, and sequentially passes through the power supply 600a, the second fan 500a and the opposite second openings. 118a is discharged from the outside of the casing 400 by the air outlet 410 by the guide of the baffle 700 through one side of the visor 800. Wherein, since the cooling airflow 502a passes through the second opening 118a of the frame 110 and flows through the outer surface of the lamp cover 144 of the light source 140a, the cooling airflow 502a can be used to cool the lampshade 144 of the light source 140a. In addition, when the second fan 500b is activated, the cooling airflow 502b provided by the second fan 500b enters the casing 400 through the air inlet 420b, and sequentially passes through the power supply 600b, the second fan 500b and the opposite second openings 15 PT700 21398twf. The .doc/n 118b is discharged from the outside of the casing 400 by the air outlet 410 by the barrier of the baffle 700 passing through the other side of the visor 80. Similarly, since the cooling airflow 5〇2b passes through the second opening 118b of the frame 110 and flows through the outer surface of the lamp cover 144 of the light source 14〇b, the 'cooling airflow 5〇2b can be used to cool the lampshade 144 of the light source 140b. As can be seen from the above embodiments, the cooling airflows 502a, 502b can be used to cool the corresponding power supplies 600a, 600b and the corresponding light sources 140a, 140b. Here, the second fans 500a, 500b in the first embodiment are, for example, axial fans, but the second fans 500a, 500b may be blow fans. In addition, the projection device 10 may further include a third fan 900 disposed adjacent to the optical engine 200 such that the cooling airflow 902 provided thereto can be used to cool optical components located inside the optical engine 200, such as a color wheel. , light integration rod, lens, total internal reflection prism (TIR prism) and digital micro-mirror device (DMD). The third fan 900 in the first embodiment is, for example, a blower fan, but the second fan 900 may also be an axial fan. When the third fan 900 is activated, its air inlet sucks the airflow entering the casing 400 from the air inlet 420b, and then is discharged from its air outlet to the optical element in the optical engine 200 to cool the inside thereof, and finally the air outlet 410 discharges the casing. Outside the body 400. It is noted that, since the power of the first fan 130 is greater than the power of the second fan 500a, 500b and the third fan 900, the cooling airflow 132 provided by the second fan 130 drives the second fan 500a, 500b and the third fan 1325089. The cooling airflows 5〇2a, 502b, 902 provided by PT700 21398twf.doc/n 900 are discharged out of the casing 400 through the air outlets 410. Therefore, the cooling airflows 132, 502a, 502b, 902 are not retained in the housing 400 to prevent the temperature inside the housing 400 from continuously rising. For the second embodiment, please refer to FIG. 4B. The structure of the light source module 100b is substantially the same as the light source module 100a shown in FIG. 4A, and the two are different in the second embodiment. The first receiving spaces 112a, 112b are located at opposite side portions U43 of the second receiving space 114, and the light sources 140a, 140b are respectively located in the corresponding first receiving spaces 112a, 112b, and the light emitting surface 141 of the light sources 140a, 140b. The second sub-space 114 is disposed, and the illumination sub-beams 142a, 142b provided by the light sources 14A, HOb are parallel to each other. For the same, the illumination sub-beams 142a, 142b are converted into the illumination beam 142 by the light-combining element 150 and transmitted to the optical engine 2, as described in the Patent No. 00580545, which is hereby incorporated by reference. Referring to FIG. 4C, the structure of the light source module i〇〇c is substantially the same as the light source module i〇〇a shown in FIG. 4A, and the difference between the two is: The frame 110 in the embodiment has three first receiving spaces U2a, 112b, 112c, and the light source module i〇OC has three light sources 14〇a, M〇b, 140c, and the light combining element 150 includes only the light splitting. Mirror 152. The first receiving spaces 112a, 112b, 112c are respectively located on the adjacent three sides 17 1325089 PT700 21398twf.doc/n portion 1143 of the second receiving space U4, and the light sources 140a, l4〇b, l4〇c are respectively located corresponding to the first The accommodating spaces 112a, 112b, and 112c are disposed, and the light-emitting surfaces 141 of the light sources 140a, 140b, and 140c are disposed toward the second accommodating space 114. Wherein, the illumination sub-beams 142a, 142c provided by the light sources 140a, 140c are parallel to each other, and the illumination sub-beam 142b provided by the light source 140b is associated with the light source 140a,
140c所提供之照明子光束142b、142c垂直。相同的，照 明子光束142a、142b、142c透過合光元件150轉換為照明 光束142，並傳遞至光學引擎2〇〇的其他方式請參照中華 民國公告第00580545號專利所述，於此不作贅述。The illumination sub-beams 142b, 142c provided by 140c are vertical. For the same, the illumination sub-beams 142a, 142b, and 142c are converted into the illumination beam 142 by the light-combining element 150 and transmitted to the optical engine 2, as described in the Patent No. 00580545, which is hereby incorporated by reference.
乡示上所述’由於本發明是將多個燈源排列於第一風扇 的周圍，以使多個燈源可共用第一風扇所提供的冷卻氣流 以進行散熱，因此，本發明可以使用較少的散熱元 燈，達到散熱的目的。除此之外，由於本發明使用的風扇 數置較少，因此，投影裝置之重量以及尺寸皆可進一步減 少。再者’減少散熱元件的數量可以簡化系統的控制電路 以降低製造成本’並提高系統的可靠度（reliability)。 雖然本發明已以較佳實施例揭露如上，然1 發明’任何所屬技術領域中具有通常知識者，在不 因此ίΪ明之精神域®内’ #可作些許之更動與潤飾， 為準保護範圍當視後附之申請專利範圍所界定者 輔助專利文件搜尋之用，並二= 1325089 PT700 21398twf.doc/n 【圖式簡單說明】 圖1為本發明第一實施例之投影裝置之結構示意圖。 圖2為圖1中之燈源模組的立體圖。 圖3為圖2之爆炸圖。 圖4A為本發明第一實施例之燈源模組之上視結構示 • 意圖。 , 圖4B為本發明第二實施例之燈源模組之上視結構示 意圖。 ° • 圖4C為本發明第三實施例之燈源模組之上視結構示 意圖。 圖5為圖3中之第二容納空間的示意圖。 【主要元件符號說明】 10 :投影裝置 100a、l〇〇b、100c :燈源模組 110 :框架 112a、112b、112c、114 :容納空間 φ 1141 :頂部 1142 :底部 1143 :側部 ' 116、118a、118b :開口 120 :導風裝置 122 :承載面 124 :連接面 126 :導風板 1325089 PT700 21398twf.doc/n 130、500a、500b、900 :風扇 132、502a、502b、902 :冷卻氣流 140a、140b、140c :燈源 141 :出光面 142 :照明光束 142a、142b、142c :照明子光束 144 :燈罩 146 :燈芯 150 :合光元件 152 :分光鏡 154 :反射鏡 200 :光學引擎 300 :成像系統 400 :殼體 410 :出風口 420a、420b :入風口 600a、600b :電源供應器 700 :擋板 800 :遮光板 20As shown in the above description, the present invention can arrange a plurality of light sources around the first fan so that the plurality of light sources can share the cooling airflow provided by the first fan for heat dissipation. Therefore, the present invention can be used. Less heat-dissipating element lights for heat dissipation. In addition, since the number of fans used in the present invention is small, the weight and size of the projection device can be further reduced. Furthermore, reducing the number of heat dissipating components simplifies the control circuitry of the system to reduce manufacturing costs and increases the reliability of the system. Although the present invention has been disclosed in the preferred embodiments as above, the invention of the present invention is generally known to those skilled in the art, and may be modified and retouched within the scope of the spirit domain. </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; 2 is a perspective view of the light source module of FIG. 1. Figure 3 is an exploded view of Figure 2. Fig. 4A is a schematic view showing the structure of the light source module according to the first embodiment of the present invention. 4B is a schematic top view of a light source module according to a second embodiment of the present invention. Fig. 4C is a schematic top plan view of a light source module according to a third embodiment of the present invention. Figure 5 is a schematic view of the second receiving space of Figure 3. [Description of main component symbols] 10: Projection devices 100a, 10b, 100c: Light source module 110: frames 112a, 112b, 112c, 114: accommodation space φ 1141: top 1142: bottom 1143: side '116, 118a, 118b: opening 120: air guiding device 122: bearing surface 124: connecting surface 126: air deflector 1325089 PT700 21398twf.doc/n 130, 500a, 500b, 900: fan 132, 502a, 502b, 902: cooling airflow 140a , 140b, 140c: light source 141: light emitting surface 142: illumination light beam 142a, 142b, 142c: illumination sub-beam 144: lamp cover 146: wick 150: light combining element 152: beam splitter 154: mirror 200: optical engine 300: imaging System 400: housing 410: air outlets 420a, 420b: air inlets 600a, 600b: power supply 700: baffle 800: visor 20